package thread;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class ThreadPoolDemo {
    public static void main(String[] args) {
        ExecutorService threadPool = Executors.newFixedThreadPool(2);
        for (int i = 0; i < 5; i++) {
            Runnable r = new Runnable() {
                @Override
                public void run() {
                    try {
                        Thread t = Thread.currentThread();
                        System.out.println(t.getName() + ":正在执行任务...");
                        Thread.sleep(5000);
                        System.out.println(t.getName() + ":执行任务完毕");
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            };
            threadPool.execute(r);
            System.out.println("将任务指派给线程池");
            threadPool.shutdownNow();
            System.out.println("线程池关闭了!");
        }
    }
}
